<template>
  <div>
    <Row type="flex"
         justify="start"
         align="middle"
         class="height-100">
      <div style="display: block;text-align: center;">
        <Upload ref="upload"
                :show-upload-list="false"
                action="https://up.qiniup.com"
                :on-format-error="handleFormatError"
                :before-upload="handleBeforeUpload"
                :on-progress="handleProgress"
                :on-success="handleSuccess"
                :on-error="handleError"
                :on-exceeded-size="handleExceed"
                :data="{token:upload_token}">
          <Button icon="ios-cloud-upload-outline">上传文件</Button>
          <span class="padding-left-20">建议尺寸：{{wid}}*{{hei}}</span>
        </Upload>
      </div>
    </Row>
    <Row class="margin-top-20">
      <div class=""
           v-if="icon_files.length > 0">
        <template v-for="item in icon_files">
          <div class="demo-upload-list"
               v-if="item != ''">
            <img :src="item">
            <div class="demo-upload-list-cover">
              <Icon type="ios-eye-outline"
                    @click.native="handleView(item)"></Icon>
              <Icon type="ios-trash-outline"
                    @click.native="handleRemove(item)"></Icon>
            </div>
          </div>
        </template>
      </div>
      <Modal title="查看图片"
             v-model="visible"
             style="z-index: 1000">
        <img :src="imgName"
             v-if="visible"
             style="width: 100%">
      </Modal>
    </Row>
  </div>
</template>
<script>
import { getQiniu, getQiniuPrivateUrl } from '@/api/main'
export default {
  data () {
    return {
      visible: false,
      imgName: '',
      upload_token: '',
      qiniu_url: ''
    }
  },
  props: {
    icon_files: {
      type: Array,
      default: []
    },
    wid: {
      type: Number,
      default: 150
    },
    hei: {
      type: Number,
      default: 150
    },
    uploadNum: {
      type: Number,
      default: 0
    },
    uploadPrivate: {
      type: Boolean,
      default: false
    }
  },
  methods: {
    handleFormatError (file) {
      this.$Notice.warning({
        title: '文件格式不正确',
        desc: '文件 ' + file.name + ' 格式不正确，请选择图片文件。',
      })
    },
    handleBeforeUpload (file) {
      this.$Notice.warning({
        title: '文件正在上传',
        desc: '文件 ' + file.name + ' 正在上传。',
      })
    },
    handleProgress (event, file) {
      // this.$Notice.info({
      //     title: '文件正在上传',
      //     desc: '文件 ' + file.name + ' 正在上传。',
      // })
    },
    handleSuccess (event, file, fileList) {
      let _this = this
      if (file.response.key) {
        var upload_url = file.response.domain + file.response.key
        if (this.uploadPrivate) {
          let obj = {}
          obj.url = upload_url
          getQiniuPrivateUrl(obj).then(res => {
            upload_url = res.url
            _this.addUploadImg(upload_url)
          })
        } else {
          this.addUploadImg(upload_url)
        }
      }
      this.$Notice.success({
        title: '文件上传成功',
        desc: '文件 ' + file.name + ' 上传成功。',
      })
    },
    addUploadImg (upload_url) {
      if (this.uploadNum > 0) {
        if (this.icon_files.length < this.uploadNum) {
          this.icon_files.push(upload_url)
        } else {
          this.$set(this.icon_files, (this.icon_files.length - 1), upload_url)
        }
      } else {
        this.icon_files.push(upload_url)
      }
    },
    handleError (event, file) {
      this.$Notice.error({
        title: '文件上传成功',
        desc: '文件 ' + file.name + ' 上传失败。',
      })
    },
    handleExceed (event, file) {
      this.$Notice.error({
        title: '文件上传失败',
        desc: '文件大小超出限制。',
      })
    },
    handleView (name) {
      this.imgName = name
      this.visible = true
    },
    handleRemove (file) {
      // 从 upload 实例删除数据
      this.icon_files.splice(this.icon_files.indexOf(file), 1)
    }
  },
  mounted () {
    let obj = {}
    if (this.uploadPrivate) {
      obj.is_private = 1
    } else {
      obj.is_private = 0
    }
    getQiniu(obj).then(res => {
      if (res.code === 0) {
        this.upload_token = res.token
        this.qiniu_url = res.url
      }
    })
  }
}
</script>
<style>
.demo-upload-list {
	display: inline-block;
	min-width: 60px;
	min-height: 60px;
	//max-width: 200px;
	//max-height: 200px;
	text-align: center;
	line-height: 0px;
	//border: 1px solid transparent;
	//border-radius: 4px;
	overflow: hidden;
	background: #fff;
	position: relative;
	box-shadow: 0 1px 1px rgba(0, 0, 0, 0.2);
	margin-right: 4px;
}
.demo-upload-list img {
	width: 100%;
	height: 100%;
}
.demo-upload-list-cover {
	display: none;
	position: absolute;
	top: 0;
	bottom: 0;
	left: 0;
	right: 0;
	background: rgba(0, 0, 0, 0.6);
}
.demo-upload-list:hover .demo-upload-list-cover {
	display: block;
}
.demo-upload-list-cover i {
	color: #fff;
	font-size: 20px;
	cursor: pointer;
	margin: 0 2px;
}
p.prompt {
	color: #dddee1;
}
</style>

